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Submitted on: 08 February 2019.
Revised on: 07 April 2019.
Accepted on: 01 June 2019.
___________________Journal of Inverse and Ill-Posed Problems
Submitted on: 14 January 2012.
Revised on: 04 April 2012.
Accepted on: 20 May 2012.
___________________Journal of Inverse and Ill-Posed Problems
Submitted on: 21 February 2005.
Revised on: 04 May 2005.
Accepted on: 30 June 2005.
___________________Journal of Inverse and Ill-Posed Problems
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Submitted on: 01 April 1998.
Revised on: 07 June 1998.
Accepted on: 06 July 1998.
___________________Journal of Inverse and Ill-Posed Problems
Submitted on: 28 November 2014.
Revised on: 14 February 2015.
Accepted on: 28 February 2015.
___________________Journal of Inverse and Ill-Posed Problems